生成二維碼，二維碼生成器

生成二維碼，二維碼生成器

一、利用google提供的的zxing生成不包含logo的二維碼

public static void main(String[] args){
		try {
			//二維碼跳轉內容
			String contet = "http://izhongwei.github.io/blog/index.html";
			//二維碼生成路徑
			String path = "E:";
			MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
			Map hints = new HashMap();
			hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
			BitMatrix bitMatrix = multiFormatWriter.encode(contet, BarcodeFormat.QR_CODE, 400, 400, hints);// 生成二維碼尺寸大小
			File file = new File(path,"test.jpg");//生成二維碼後的圖片路徑和名稱
			ImageWrite.writeToFile(bitMatrix, "jpg", file);//需要ImageWrite類生成圖片
			System.out.println("二維碼已經生成");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

　　運行main方法後在：

二、利用google的zxing生成包含logo的二維碼

使用簡介：

在QEcodeUtil.java類中：

package com.able.barcode;



import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.OutputStream;
import java.util.Hashtable;
import java.util.Random;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

/**
 * 
 * @author 夏中偉
 *二維碼工具類
 */
public class QRCodeUtil {

	private static final String CHARSET = "utf-8";
	private static final String FORMAT_NAME = "JPG";
	// 二維碼尺寸
	private static final int QRCODE_SIZE = 300;
	// LOGO寬度
	private static final int WIDTH = 80;
	// LOGO高度
	private static final int HEIGHT = 80;

	private static BufferedImage createImage(String content, String imgPath,
			boolean needCompress) throws Exception {
		Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
		hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
		hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
		hints.put(EncodeHintType.MARGIN, 1);
		BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
				BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
		int width = bitMatrix.getWidth();
		int height = bitMatrix.getHeight();
		BufferedImage image = new BufferedImage(width, height,
				BufferedImage.TYPE_INT_RGB);
		for (int x = 0; x < width; x++) {
			for (int y = 0; y < height; y++) {
				image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
						: 0xFFFFFFFF);
			}
		}
		if (imgPath == null || "".equals(imgPath)) {
			return image;
		}
		// 插入圖片
		QRCodeUtil.insertImage(image, imgPath, needCompress);
		return image;
	}

	/**
	 * 插入LOGO
	 * 
	 * @param source
	 *            二維碼圖片
	 * @param imgPath
	 *            LOGO圖片地址
	 * @param needCompress
	 *            是否壓縮
	 * @throws Exception
	 */
	private static void insertImage(BufferedImage source, String imgPath,
			boolean needCompress) throws Exception {
		File file = new File(imgPath);
		if (!file.exists()) {
			System.err.println(""+imgPath+"   該文件不存在！");
			return;
		}
		Image src = ImageIO.read(new File(imgPath));
		int width = src.getWidth(null);
		int height = src.getHeight(null);
		if (needCompress) { // 壓縮LOGO
			if (width > WIDTH) {
				width = WIDTH;
			}
			if (height > HEIGHT) {
				height = HEIGHT;
			}
			Image image = src.getScaledInstance(width, height,
					Image.SCALE_SMOOTH);
			BufferedImage tag = new BufferedImage(width, height,
					BufferedImage.TYPE_INT_RGB);
			Graphics g = tag.getGraphics();
			g.drawImage(image, 0, 0, null); // 繪制縮小後的圖
			g.dispose();
			src = image;
		}
		// 插入LOGO
		Graphics2D graph = source.createGraphics();
		int x = (QRCODE_SIZE - width) / 2;
		int y = (QRCODE_SIZE - height) / 2;
		graph.drawImage(src, x, y, width, height, null);
		Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
		graph.setStroke(new BasicStroke(3f));
		graph.draw(shape);
		graph.dispose();
	}

	/**
	 * 生成二維碼(內嵌LOGO)
	 * 
	 * @param content
	 *            內容
	 * @param imgPath
	 *            LOGO地址
	 * @param destPath
	 *            存放目錄
	 * @param needCompress
	 *            是否壓縮LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath, String destPath,
			boolean needCompress) throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath,
				needCompress);
		mkdirs(destPath);
		String file = new Random().nextInt(99999999)+".jpg";
		ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
	}

	/**
	 * 當文件夾不存在時，mkdirs會自動創建多層目錄，區別於mkdir．(mkdir如果父目錄不存在則會拋出異常)
	 * @author 夏中偉
	 * Email: [email protected]
	 * @date 2013-12-11 上午10:16:36
	 * @param destPath 存放目錄
	 */
	public static void mkdirs(String destPath) {
		File file =new File(destPath);    
		//當文件夾不存在時，mkdirs會自動創建多層目錄，區別於mkdir．(mkdir如果父目錄不存在則會拋出異常)
		if (!file.exists() && !file.isDirectory()) {
			file.mkdirs();
		}
	}

	/**
	 * 生成二維碼(內嵌LOGO)
	 * 
	 * @param content
	 *            內容
	 * @param imgPath
	 *            LOGO地址
	 * @param destPath
	 *            存儲地址
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath, String destPath)
			throws Exception {
		QRCodeUtil.encode(content, imgPath, destPath, false);
	}

	/**
	 * 生成二維碼
	 * 
	 * @param content
	 *            內容
	 * @param destPath
	 *            存儲地址
	 * @param needCompress
	 *            是否壓縮LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String destPath,
			boolean needCompress) throws Exception {
		QRCodeUtil.encode(content, null, destPath, needCompress);
	}

	/**
	 * 生成二維碼
	 * 
	 * @param content
	 *            內容
	 * @param destPath
	 *            存儲地址
	 * @throws Exception
	 */
	public static void encode(String content, String destPath) throws Exception {
		QRCodeUtil.encode(content, null, destPath, false);
	}

	/**
	 * 生成二維碼(內嵌LOGO)
	 * 
	 * @param content
	 *            內容
	 * @param imgPath
	 *            LOGO地址
	 * @param output
	 *            輸出流
	 * @param needCompress
	 *            是否壓縮LOGO
	 * @throws Exception
	 */
	public static void encode(String content, String imgPath,
			OutputStream output, boolean needCompress) throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath,
				needCompress);
		ImageIO.write(image, FORMAT_NAME, output);
	}

	/**
	 * 生成二維碼
	 * 
	 * @param content
	 *            內容
	 * @param output
	 *            輸出流
	 * @throws Exception
	 */
	public static void encode(String content, OutputStream output)
			throws Exception {
		QRCodeUtil.encode(content, null, output, false);
	}

	/**
	 * 解析二維碼
	 * 
	 * @param file
	 *            二維碼圖片
	 * @return
	 * @throws Exception
	 */
	public static String decode(File file) throws Exception {
		BufferedImage image;
		image = ImageIO.read(file);
		if (image == null) {
			return null;
		}
		BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(
				image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		Result result;
		Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
		hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
		result = new MultiFormatReader().decode(bitmap, hints);
		String resultStr = result.getText();
		return resultStr;
	}

	/**
	 * 解析二維碼
	 * 
	 * @param path
	 *            二維碼圖片地址
	 * @return
	 * @throws Exception
	 */
	public static String decode(String path) throws Exception {
		return QRCodeUtil.decode(new File(path));
	}

	public static void main(String[] args) throws Exception {
                // 生成二維碼需要跳轉的url路徑
		String text = "http://izhongwei.github.io/blog/index.html";
                // 在d盤下存放1.jpg圖片是二維碼內嵌Logo圖
                 // 生成功後的二維碼存放e盤barcode路徑下
                 // trur表示自動壓縮logo圖片的大小
		QRCodeUtil.encode(text, "d:/1.jpg", "e:/barcode", true);
	}
}
 

　　運行main方法後生成的二維碼：

三、使用Jquery.qrcode生成二維碼

下載項目使用:

代碼下載:https://github.com/izhongwei/two-dimemensionCode